4.3 Medium

obsidian-tc Bridge tools leak denied-note data via unfiltered sibling fields

CVE-2026-77362

Impact Bridge tool results filtered only the items array against the read ACL and passed sibling fields through unfiltered: tasksfilter emitted groups whose counts reflected denied notes, makemdquery returned ...result siblings, and listtemplates enumerated Templater template paths and parsed user-function bodies with no read-whitelist gate. A caller could infer or read data from notes outside its read ACL. Patches Fixed in 1.3.1. Upgrade to >= 1.3.1. All path-attributable fields are now scrubbed or fail-closed, and listtemplates is gated on the read whitelist. Workarounds Disable the affected bridge tools (tasksfilter, makemdquery, listtemplates) via tool visibility.

Assessment

CVSS: 4.3 (v3.1)
Severity: Medium
EPSS: 0.002% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 23 October 2026
Last updated: 23 October 2026
Affected: npm · obsidian-tc
Weakness: CWE-200, CWE-863

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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